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| author | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:33:49 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:33:49 +0900 |
| commit | 19f9a34f87c48bbd270d617d1c986d0c23866a1a (patch) | |
| tree | 19f32122aec9c16cbbf8e3331e81040a4850cb8d /arch/sh/kernel/vsyscall/vsyscall-sigreturn.S | |
| parent | 8c12b5dc13bf8516303a8224ab4e9708b33d5b00 (diff) | |
| download | linux-19f9a34f87c48bbd270d617d1c986d0c23866a1a.tar.gz | |
sh: Initial vsyscall page support.
This implements initial support for the vsyscall page on SH.
At the moment we leave it configurable due to having nommu
to support from the same code base. We hook it up for the
signal trampoline return at present, with more to be added
later, once uClibc catches up.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/vsyscall/vsyscall-sigreturn.S')
| -rw-r--r-- | arch/sh/kernel/vsyscall/vsyscall-sigreturn.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S new file mode 100644 index 00000000000000..555a64f124ca0c --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S @@ -0,0 +1,39 @@ +#include <asm/unistd.h> + + .text + .balign 32 + .globl __kernel_sigreturn + .type __kernel_sigreturn,@function +__kernel_sigreturn: +.LSTART_sigreturn: + mov.w 1f, r3 + trapa #0x10 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + +1: .short __NR_sigreturn +.LEND_sigreturn: + .size __kernel_sigreturn,.-.LSTART_sigreturn + + .balign 32 + .globl __kernel_rt_sigreturn + .type __kernel_rt_sigreturn,@function +__kernel_rt_sigreturn: +.LSTART_rt_sigreturn: + mov.w 1f, r3 + trapa #0x10 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + +1: .short __NR_rt_sigreturn +.LEND_rt_sigreturn: + .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn + + .section .eh_frame,"a",@progbits + .previous |